Grain-separator.



F. AYLER.

GRAIN SEPARATOB. APPLICATION FILED JAN. 19, 1910.

Patented Nov. 15, 1910.

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F. AYLBR;

GRAIN SEPARATOB.

APPLICATION FILED JAN. 19, 1910.

975,598. Patented Nov. 15, 1910.

2 SHEETS-SHEET 2.

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FRANK AYLER, 0F WINONA, 'VTASHINGTON.

GRAIN-SEPARATOR.

Specification of Letters Patent.

Application filed January 19, 1910. Serial No. 538,939.

To all whom it may concern:

Be it known that I, FRANK AYLER, citizen of the United States, residingat Winona, in the county of lVhitman and State of Washington, haveinvented certain new and useful Improvements in Grain-Separators, ofwhich the following is a specification.

This invention relates to threshing machines and has for its object theprovision of a strong, durable and thoroughly efficient machine of thischaracter, in which the separation of the grain from the straw iseffected by subjecting the straw to the action of a blast of air duringits passage through the machine.

A further object is to provide means for directing the grain dislodgedfrom the straw into a suitable pan or receptacle designed to receive thesame.

A still further object of the invention is generally to improve thisclass of devices so as to increase their utility, durability andefiiciency.

Further objects and advantages will appear in the following description,it being understood that various changes in form, proportions and minordetails of construction may be resorted to within the scope of theappendedclaims;

For a full understanding of the invention and the means for effectingthe result, reference is to be had to the following description andaccompanying drawings, in which:

Figure 1 is a longitudinal sectional view of a threshing machineconstructed in accordance with my invention; Fig. 2 is a side elevationof the same.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The threshing machine or separator forming the subject matter of thepresent invention comprises a supporting frame or casing 5 mounted uponground wheels 6 and provided with the usual threshing cylinder 7 andconcave 8.

Mounted for rotation within the casing 5 are front and rear feedingdevices 9 and 10, preferably in the form of endless conveyers, as shown,said conveyers being disposed in difi'erent inclined planes and havingtheir adjacent ends spaced apart to form an intermediate gap over whlchthe straw travels in its passage from one conveyer to the other.

"plate and in advance of the fan 13.

Arranged beneath the front feeding device or conveyer 9 is a fan casing11 having a rearwardly and upwardly inclined spout 12 through which ablast of air from the fan 13 is directed on the straw as the lattertravels from one conveyer to the other, thus to dislodge any grainadhering to the straw after being subjected to the action of thethreshing cylinder and concave.

Interposed between the conveyers 9 and 10, is an inclined plate 14:,which serves to direct the loose grain onto a suitable pan or receptacle15 arranged beneath said inclined The upper surface of the pan 15 ispreferably corrugated so as to assist in feeding the grain depositedthereon to a riddle 16, the

latter being mounted" for oscillation beneath the rear conveyer 10 inthe usual manner. Arranged beneath the rear conveyer 10, is an inclinedfloor 17 having a downwardly inclined extension 18 which serves 'todirect the grain passing through the slats of the conveyer 1O downwardlyonto the pan 15. A fan 19, similar in construction to the fan 13 ispreferably arranged beneath the pan 15 for the purpose of relievingthegrain from chaff and the like before its delivery into the hopper 20.Depending from the inclined extension 18 of the floor 17 is a flexibleuard or shield 21 which prevents the air from the fan 19 from dislodgingthe grain deposited 011 the pan 15.

A suitable beater 22 is preferably mounted for rotation in the upperportion of the casing 5 at the end of the inclined plate 11 to assist inagitating the straw and thus permit the grain to be dislodged therefromby the action of the fan 13. The spout 12 is provided with a movablewall 23, the pivot pin 24 of which is extended through segmental slots25 formed in the opposite side walls of the casing 5 for engagement withwing nuts 26 so that after the plate or deflector 23 has been adjusted,the same may be securely locked in position by rotating the wing nuts26. The purpose of the plate or deflector 23 is to direct a blast of airfrom the fan 13, either in the direction of the upper end of the plate14 or toward the upper end of the conveyer 9.

Slidably mounted in suitable guides 27 on the supporting frame, areshutters 28, the latter being connected through the medium of links 29with an actuating rod 30 so that by rotating the wheel or finger piece31 of Patented Nov. 15, 1910.

the rod, the shutters .28 may be adjusted toregulate the admission ofair to the fan 18. If desired, shutters similar in construction to theshutters 28, may be disposed at the fan 19. Attention is here called tothe fact that the upper end of the inclined plate 1.4 is extended abovethe lower end of the conveyer 10 so as to form in effect a support forthe straw during its passage from one conveyer to the other and thushold the straw in suspension at this point and allow the loose grain tobe dislodged by the action of the blast of air. It will also be notedthat the pan 15 is provided with a flange 32 which prevents accidentaldisplacement of the grain on said pan. Thus it will be seen that thestraw after leaving the threshing cylinder is caused to travel throughthe machine by the conveyers 9 and 10. As the straw passes from oneconveyer to the other, the blast of air from the fan will dislodge thegrain adhering to the straw, which grain will be directed to the pan 15by the inclined plate 14:. When the straw reaches the conveyer 10, anyloose grain not separated therefrom by the threshing cylinder and airblast will pass between the slats of the conveyer 10 and be directedonto the pan 15 by the inclined extension 18 of the floor 17, the graindeposited on the pan 15 being fed to the riddle 116 and-thence throughangers or conveyers 33 into a suitable receptacle 34 designed to receivethe'same. It will of course be understood that the spout 12 of the fanmay be extended from either the front or rear wall thereof, and that thebeater 22 may be positioned at any desired point within the casingwithout departing from the spirit of the invention. It is preferredhowever. to mount the beater 22 above the top of the inclined plate 14so as to agitate the straw at this point and thus allow any grain notdislodged by the action of the blast of air to pass downwardly throughthe slats of the conveyer 10 onto the pan 15 in the manner beforestated. It will also be understood that the device may be position on orat any desired point with reference to the mechanism of difierent stylesor types of grain separators and threshing machines, and that the grainand straw may be carried either directly or indirectly from the cylinderto the air blast with any style of conveyer or feeding device, withoutdeparting from the spirit of the invention.

Having thus described the invention, what I is claimed as new is:

1. A threshing machine includlngspaced conveyers, a fan for directing ablast of air on the straw as the latter travels from one conveyer to theother, a receiving pan, an inclined plate having its upper end extendedabove the lower end of the rear conveyer, and its lower end disposedabove the receiving pan, a floor arran ed beneath the rear conveyer andprovided with an extension projecting in the direction of said receivingpan, and a flexible guard depending from said inclined extension anddisposed at the rear end of the receiving pan.

2. A threshing machine including spaced V conveyers disposed indifferent inclined planes, a fan casing having a spout extendingupwardly between said conveyers and provided with a movable wall, a fanmounted for rotation in the casing for directing a blast of air on thestraw as the latter travels from one conveyer to the other, a receivingpan, an inclined plate having its lower end disposed above the receivingpan and its upper end extended above the inner end of the rear conveyerto form a partial barrier for the straw, a beater mounted for rotationabove the upper end of the inclined plate, a floor disposed beneath therear conveyer and provided. with a downwardly inclined extension, and. aflexible guard depending froin the extension of the floor at the rear ofthe receiving pan.

In testimony whereof I affix my signature in presence of two witnesses.

FRANK AYLEB. [L. s]

lVitnesses:

E. V. HUGHES,

GUY Hoonns.

